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Narkiewicz WN-3 : ウィキペディア英語版 | Narkiewicz WN-3
The Narkiewicz WN-3 was a Polish seven-cylinder air-cooled radial engine of the 1950s. ==Design and development==
In 1946, Wiktor Narkiewicz, who prior to the Second World War was technical director of the Czechoslovakian Avia aero-engine factory, was appointed chief designer of the Polish Central Engine Office, and later the Aero-engine department of the Polish Aviation Institute. He led the design of the WN-1, a air-cooled flat-four piston engine which was the first post-war Polish aero-engine, followed by the WN-2 in 1947, but both of these engines failed to enter production.〔〔''Flight'' 26 July 1957, p. 127.〕 In 1952 Narkiewicz set up a small design team to design a new seven-cylinder radial engine, the WN-3. The first prototype, rated at was completed in 1954, and by the time testing was completed in 1955, the engine's power rose to .〔〔 The WN-3 entered production in 1956,〔Cynk ''Flight International'' 4 January 1962, p. 17.〕 powering the PZL TS-8 Bies training aircraft.〔
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